TVA2020 Toxic Vapor Analyzer - FAQs

The Thermo Scientific TVA2020 Toxic Vapor Analyzer is designed to be a lightweight, compact, and portable analyzer for field monitoring. It weighs 9.2 lb (4.17 kg) in the FID-only configuration and 9.4 lb (4.26 kg) in the dual FID/PID configuration, with dimensions of 11.5 × 9 × 4 in. (29.2 × 22.9 × 10.2 cm). For convenient hands-free operation in the field, the TVA2020 analyzer can be carried using a backpack or shoulder strap.

Yes. The Thermo Scientific TVA2020 Toxic Vapor Analyzer supports Bluetooth and USB connection. Optional Bluetooth communication can transmit concentration data to a handheld device containing an LDAR software database, which helps reduce the need for post-monitoring file transfers and provides access to route information.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer product specifications list 10 hours of battery operating time at 0 degrees C, with a full charge in less than 10 hours.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer has a linear measurement range of 0–30,000 ppm methane for the FID and 0–2,000 ppm isobutylene for the PID. The dynamic range extends from 1–50,000 ppm methane for the FID and 0.5–2,000 ppm isobutylene for the PID.

The minimum detectable level is 0.5 ppm methane for the FID-only Thermo Scientific TVA2020 Toxic Vapor Analyzer and 0.5 ppm isobutylene for the FID/PID TVA2020 Toxic Vapor Analyzer. Thermo Fisher defines the minimum detectable level as seven times the standard deviation of peak-to-peak noise.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer has a response time of less than 3.5 seconds for 90% of final value for both FID and PID measurements, based on specified methane and isobutylene test conditions.

Yes. The Thermo Scientific TVA2020 Toxic Vapor Analyzer is available in configurations with intrinsic safety certifications, including USA Class I, Division 1, Groups A, B, C, D T3; Canada Class I, Zone 1; ATEX; and IECEx certifications.

The analyzer’s FID-only configuration is optimized for measuring organic compounds, particularly hydrocarbons. FID offers a wide linear/dynamic range, good stability and repeatability, and is well suited to applications such as U.S. EPA Method 21 / LDAR monitoring.

The analyzer’s dual FID/PID configuration adds a PID operating simultaneously with the FID. This expands the compounds that the TVA2020 analyzer can detect because the two technologies have complementary responses. The PID is particularly sensitive to aromatics, unsaturated hydrocarbons, chlorinated compounds, and certain inorganic gases that an FID may not detect.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer can detect a broad range of organic and inorganic gas compounds, depending on the detector configuration. The FID is highly sensitive to hydrocarbons and many volatile organic compounds (VOCs), including methane. The PID, available in the dual FID/PID configuration, expands detection capabilities to compounds that can be ionized by the 10.6 eV UV lamp, including many aromatic and chlorinated compounds, as well as certain inorganic compounds.

Examples of compounds detectable by the PID include ammonia, carbon disulfide, carbon tetrachloride, chloroform, ethylamine, and hydrogen sulfide. Using the FID and PID simultaneously provides broader compound coverage than either detector alone.

The appropriate configuration of the Thermo Scientific TVA2020 Toxic Vapor Analyzer depends on your application and the compounds you need to monitor.

The FID-only configuration is well suited for routine VOC and hydrocarbon monitoring where FID detection meets the application requirements.

The dual FID/PID configuration provides greater flexibility by combining both detector technologies, allowing simultaneous FID and PID measurements and broader detection capabilities. For applications involving a wider range of compounds or where additional compound-response information is beneficial, the dual FID/PID configuration is recommended.

The FID-only configuration of the Thermo Scientific TVA2020 Toxic Vapor Analyzer uses a Flame Ionization Detector (FID) and is well suited for detecting hydrocarbons and a broad range of volatile organic compounds (VOCs). The dual FID/PID configuration combines the FID with a Photoionization Detector (PID), allowing both detectors to operate simultaneously. The addition of the PID expands detection capabilities to compounds that may have limited or no FID response, including certain aromatic, chlorinated, and inorganic compounds.

The dual FID/PID configuration provides broader compound coverage and greater flexibility for applications involving a variety of gases and vapors, while the FID-only configuration offers a simpler solution for applications primarily focused on hydrocarbon and VOC monitoring.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer can be configured as an FID analyzer using flame ionization detection, or as a dual detector analyzer using both FID and PID, or photoionization detection. The dual FID/PID configuration supports simultaneous detection and broader analytical coverage than a single-detector configuration.

Yes. The Thermo Scientific TVA2020 Toxic Vapor Analyzer is designed to help detect gas leaks from refineries, chemical plants, and other industrial sites for U.S. EPA Method 21 compliance and LDAR applications.

The Thermo Scientific TVA2020 Toxic Vapor Analyzer is a portable instrument designed for detecting and measuring volatile organic compounds (VOCs), hydrocarbons, and other gases and vapors in the field. It is commonly used for fugitive emissions monitoring, leak detection and repair (LDAR), environmental compliance, industrial hygiene, site remediation, hazmat / first responder events, landfill monitoring and site monitoring applications.

With FID-only or dual FID/PID configurations, the TVA2020 analyzer provides rapid, on-site measurements across a broad range of compounds, making it well suited for EPA Method 21 and other regulatory monitoring applications.